Many members of the domain Archaea have the ability to produce
A. methane.
B. acid.
C. high temperatures.
D. cellulose.
A. methane.
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You might infer from packages of commercial fertilizer that which of the following nutrients are most limiting to plant growth?
a. Carbon, nitrogen and phosphorous. b. Nitrogen, phosphorous and potassium. c. Hydrogen, phosphorus and magnesium. d. Iron, Magnesium and nitrogen. e. Phosphorus, potassium, and calcium.
In what system does the acidic pH prevent pathogenic infections?
a. urinary b. respiratory c. endocrine d. hepatic e. cardiovascular
What stage of mitosis is essentially the reverse of prophase?
A. Cytokinesis B. Anaphase C. Telophase D. Metaphase E. Prometaphase
Which of the following disorder is not associated with the lower respiratory tract?
A. emphysema B. pneumonia C. sinus infection D. pulmonary tuberculosis E. asthma